1. REPAIRING RECEIVER TELEVISION
REPAIRING RECEIVER TELEVISION SYSTEM
By Sarbini, S.Pd (SMK Muh 3 Yogyakarta)

2. TELEVISION TROUBLESHOOTING
EASY TRICK , ACCURACY IN REPAIRING
SYMTOM FUNCTION : see clearly the symptoms of damage to the display / CRT and then decide on the speaker location
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3. GEJALA KERUSAKAN TV 1. OFF TOTAL CHECK :
Power (input / output regulator ) Output voltage: 115V, 24V, 12V, and 5V
2. TV, LED INDICATORS OFF, SOUND GOOD, VIBRATION SWITCHING TRANSFORMER
Horisontal block (flyback trafo, horisontal transistor and capacitor)
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4. 3. ON LED INDICATOR, TV CAN’T
BE OPERATED
CHECK :
Horizontal series.
Regulator series (dioda voltage devider)
4. THERE IS’T RASTER,SOUND NORMAL (screen remains dark )
Video amplifier series
Light amplifier series
High Voltage Series
CRT
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5. Vertikal series and oscilator. Vertikal deflection series
5. ONE RASTER LINE HORISONTAL
CHECK :
Vertikal series and oscilator.
Vertikal deflection series
6. THE STRIP STRIP ON THE SCREEN AND IS NOT LOST
Horizontal osilator series (dry ELCO)
Components that have been eaten accidentally age (the new TV models are rarely found)
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6. AGC series (ELCO usually dry or leak dioda )
7. THE IMAGE HORISONTAL SHIFT
CHECK :
Sinkronisasi series
Video buffer series
AGC series (ELCO usually dry or leak dioda )
8. THE IMAGE VERTIKAL SHIFT
Vertikal osilator (New series TV caused is leak ceramic capacitor)
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7. Catu daya output series Horisontal defleksion series Deflektion yoke
9. IMAGE NARROWS
CHECK :
Catu daya output series
Horisontal defleksion series
Deflektion yoke
10. LAYER SHORT
Vsize and Vline Potensiometer
Vertical defleksi series (transistor).
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8. Potensio checker wide horizontal Power Supply series Voltage anoda CRT
11. HORIZONTAL DILATION
CHECK :
Potensio checker wide horizontal
Power Supply series
Voltage anoda CRT
12. CAPTURING VERTICAL SWEEP
Vertikal deflection series
Potensio checker vertikal
Dry elco
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9. series of mixer until video amplifier series
13. IMAGE CONTRAST LOW
CHECK :
series of mixer until video amplifier series
14. SHOW A FRWARD SLASH OR A NET PATTERN ON THE IMAGE
The cause of interference from outside, (near to the radio transmitter) Keep the antenna is the source of the interference frequency
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10. 15. The TV IMAGES BLUE / RED / GREEN / Cyan / Yellow
CHECK :
RGB Matrics series (value increase resistor / transistor damaged), try to set the VR on the RGB or CRT.
Dry Soldering
CRT
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11. TABEL OF TELEVISION TROUBLENO
TROUBLE TYPES
CHECKING PARTS 1
Good picture, no sound
Series of audio between the IF and the audio speaker 2
Image on the screen is still not clear but the color, sound normal
A series of video detector is broken. 3
Image on the screen rolled up to the middle horizontal axis direction; normal voice
Vertikal series, ussualy capacitor 4
Image on the screen and colour is not clear, sound normal
Video amplifier is broken,ussually transistor.
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12. TABEL OF TELEVISION TROUBLENO
TROUBLE TYPES
CHECKING PARTS 5
Image on the screen black and white; normal voice
Brace color damaged, usually transistor. 6
Image on the screen is broken; normal voice
Final amplifier is broken 7
Raster have pitted, missing images and sound sing (lost).
Series tuner have a damaged set of AGC does not work
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13. REPAIRING STEPS Trouble of TV must be correct
Estimating the damaged block is based on trouble
Divide the block is broken, so that search easier trouble
To more easily in search of damage to the TV,
We must understand the symptoms of damage on each block.
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